Brass BSPP-to-NPT Pipe Adapters

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85 Products

How to Identify and Measure Fittings

Pipe size is an industry designation, not the actual size. View information about how to measure threaded and unthreaded pipe and pipe fittings.

Medium-Pressure Brass and Bronze Threaded Pipe Fittings

Choose these fittings when you need better strength than our low-pressure brass and bronze pipe fittings. They offer good corrosion resistance. BSPP male threads have a gasket to protect against leaks.

For technical drawings and 3-D models, click on a part number.

Straight Adapters, Female

BSPP Male Threads with Gasket

For Use With: Air, Natural Gas, Oil, Water
Temperature Range:
NPTF × NPSM: -40° to 160° F
Specifications Met: See table

NPT Female × BSPP Male
Pipe Size	Max. Pressure	Material	Specifications Met		Each
1/16	250 psi @ 72° F	Brass	ASME B1.20.3, ASTM B16, SAE J476	00000000	000000
1/8	250 psi @ 72° F	Brass	ASME B1.20.3, ASTM B16, SAE J476	00000000	00000
1/4	250 psi @ 72° F	Brass	ASME B1.20.3, ASTM B16, SAE J476	00000000	00000
3/8	250 psi @ 72° F	Brass	ASME B1.20.3, ASTM B16, SAE J476	00000000	00000
1/2	250 psi @ 72° F	Brass	ASME B1.20.3, ASTM B16, SAE J476	00000000	00000
3/4	250 psi @ 72° F	Brass	ASME B1.20.3, ASTM B16, SAE J476	00000000	00000
1	250 psi @ 72° F	Brass	ASME B1.20.3, ASTM B16, SAE J476	00000000	00000
BSPP Female × NPT Male
1/8	250 psi @ 72° F	Brass	ASME B1.20.3, ASTM B16, SAE J476	00000000	0000
1/4	250 psi @ 72° F	Brass	ASME B1.20.3, ASTM B16, SAE J476	00000000	00000
3/8	250 psi @ 72° F	Brass	ASME B1.20.3, ASTM B16, SAE J476	00000000	00000
1/2	250 psi @ 72° F	Brass	ASME B1.20.3, ASTM B16, SAE J476	00000000	00000
3/4	250 psi @ 72° F	Brass	ASME B1.20.3, ASTM B16, SAE J476	00000000	00000
1	250 psi @ 72° F	Brass	ASME B1.20.3, ASTM B16, SAE J476	00000000	00000

Straight Reducing Adapters

BSPP Male Threads with Gasket

For Use With: Air, Natural Gas, Oil, Water
Specifications Met: ASME B1.20.3, ASTM B16, SAE J476

Pipe Size
(A)	(B)	Max. Pressure	Material		Each
NPT Female × BSPP Male
1/16	1/8	250 psi @ 72° F	Brass	00000000	000000
1/16	1/4	250 psi @ 72° F	Brass	00000000	00000
1/8	1/16	250 psi @ 72° F	Brass	00000000	00000
1/8	1/4	250 psi @ 72° F	Brass	00000000	00000
1/8	3/8	250 psi @ 72° F	Brass	00000000	00000
1/8	1/2	250 psi @ 72° F	Brass	00000000	00000
1/4	1/16	250 psi @ 72° F	Brass	00000000	00000
1/4	1/8	250 psi @ 72° F	Brass	00000000	00000
1/4	3/8	250 psi @ 72° F	Brass	00000000	00000
1/4	1/2	250 psi @ 72° F	Brass	00000000	00000
1/4	3/4	250 psi @ 72° F	Brass	00000000	00000
1/4	1	250 psi @ 72° F	Brass	00000000	00000
3/8	1/8	250 psi @ 72° F	Brass	00000000	00000
3/8	1/4	250 psi @ 72° F	Brass	00000000	00000
3/8	1/2	250 psi @ 72° F	Brass	00000000	00000
3/8	3/4	250 psi @ 72° F	Brass	00000000	00000
3/8	1	250 psi @ 72° F	Brass	00000000	00000
1/2	1/8	250 psi @ 72° F	Brass	00000000	00000
1/2	1/4	250 psi @ 72° F	Brass	00000000	00000
1/2	3/8	250 psi @ 72° F	Brass	00000000	00000
1/2	3/4	250 psi @ 72° F	Brass	00000000	00000
1/2	1	250 psi @ 72° F	Brass	00000000	00000
3/4	1/4	250 psi @ 72° F	Brass	00000000	00000
3/4	3/8	250 psi @ 72° F	Brass	00000000	00000
3/4	1/2	250 psi @ 72° F	Brass	00000000	00000
3/4	1	250 psi @ 72° F	Brass	00000000	00000
1	1/2	250 psi @ 72° F	Brass	00000000	00000
1	3/4	250 psi @ 72° F	Brass	00000000	00000
BSPP Female × NPT Male
1/16	1/8	250 psi @ 72° F	Brass	00000000	0000
1/16	1/4	250 psi @ 72° F	Brass	00000000	00000
1/8	1/16	250 psi @ 72° F	Brass	00000000	0000
1/8	1/4	250 psi @ 72° F	Brass	00000000	00000
1/8	3/8	250 psi @ 72° F	Brass	00000000	00000
1/8	1/2	250 psi @ 72° F	Brass	00000000	00000
1/4	1/16	250 psi @ 72° F	Brass	00000000	00000
1/4	1/8	250 psi @ 72° F	Brass	00000000	00000
1/4	3/8	250 psi @ 72° F	Brass	00000000	00000
1/4	1/2	250 psi @ 72° F	Brass	00000000	00000
1/4	3/4	250 psi @ 72° F	Brass	00000000	00000
1/4	1	250 psi @ 72° F	Brass	00000000	00000
3/8	1/8	250 psi @ 72° F	Brass	00000000	00000
3/8	1/4	250 psi @ 72° F	Brass	00000000	00000
3/8	1/2	250 psi @ 72° F	Brass	00000000	00000
3/8	3/4	250 psi @ 72° F	Brass	00000000	00000
3/8	1	250 psi @ 72° F	Brass	00000000	00000
1/2	1/8	250 psi @ 72° F	Brass	00000000	00000
1/2	1/4	250 psi @ 72° F	Brass	00000000	00000
1/2	3/8	250 psi @ 72° F	Brass	00000000	00000
1/2	3/4	250 psi @ 72° F	Brass	00000000	00000
1/2	1	250 psi @ 72° F	Brass	00000000	00000
3/4	1/4	250 psi @ 72° F	Brass	00000000	00000
3/4	3/8	250 psi @ 72° F	Brass	00000000	00000
3/4	1/2	250 psi @ 72° F	Brass	00000000	00000
3/4	1	250 psi @ 72° F	Brass	00000000	00000
1	1/4	250 psi @ 72° F	Brass	00000000	00000
1	1/2	250 psi @ 72° F	Brass	00000000	00000
1	3/4	250 psi @ 72° F	Brass	00000000	00000

Precision Extreme-Pressure Brass Threaded Pipe Fittings

Also known as instrumentation fittings, these have the most precise threads and the tightest tolerances of all the brass pipe fittings we offer. Fittings are brass for good corrosion resistance.

For technical drawings and 3-D models, click on a part number.

Straight Adapters, Female × Male

For Use With: Air, Argon, Natural Gas, Nitrogen Gas, Oil, Oxygen, Steam, Water
Specifications Met: See table

BSPP Female × NPT Male
Pipe Size	Max. Pressure	Max. Steam Pressure	Specifications Met		Each
1/8	3,200 psi @ 72° F	1,500 psi @ 300° F	ASME B1.20.1, ASME B31.1, ASME B31.3	00000000	000000
1/4	3,300 psi @ 72° F	1,500 psi @ 300° F	ASME B1.20.1, ASME B31.1, ASME B31.3	00000000	00000
3/8	2,600 psi @ 72° F	1,500 psi @ 300° F	ASME B1.20.1, ASME B31.1, ASME B31.3	00000000	00000
1/2	2,400 psi @ 72° F	1,500 psi @ 300° F	ASME B1.20.1, ASME B31.1, ASME B31.3	00000000	00000
3/4	2,300 psi @ 72° F	1,500 psi @ 300° F	ASME B1.20.1, ASME B31.1, ASME B31.3	00000000	000000

Extreme-Pressure Brass Threaded Pipe Fittings

Extreme pressures are no problem for these heavy-duty fittings. They are brass for good corrosion resistance.

For technical drawings and 3-D models, click on a part number.

Straight Adapters, Female × Male

For Use WIth:
NPTF × NPTF: Air, Natural Gas, Oil, Water
All other thread types: Air, Water
Specifications Met:
NPTF × NPTF: ASME B1.20.3, ASTM B124, ASTM B16, ASTM B453, SAE J476
All other thread types: ISO 7.1, ISO 228

BSPP Female × NPT Male
Pipe Size	Max. Pressure	Material		Each
1/8	2,900 psi @ 72° F	Brass	00000000	00000
1/4	2,100 psi @ 72° F	Brass	00000000	0000
3/8	1,400 psi @ 72° F	Brass	00000000	00000
1/2	1,400 psi @ 72° F	Brass	00000000	00000
3/4	1,700 psi @ 72° F	Brass	00000000	00000

High-Pressure Brass Threaded Pipe Fittings

These fittings have the strength to handle high-pressure applications. They are brass for good corrosion resistance.

For technical drawings and 3-D models, click on a part number.

Straight Adapters, Female × Male

For Use With: Air, Natural Gas, Oil, Water
Specifications Met: See table

BSPP Female × NPT Male
Pipe Size	Max. Pressure	Specifications Met		Each
1/8	1,000 psi @ 72° F	SAE J530, SAE J531	00000000	00000
1/4	1,000 psi @ 72° F	SAE J530, SAE J531	000000000	00000
3/8	1,000 psi @ 72° F	SAE J530, SAE J531	000000000	00000
1/2	1,000 psi @ 72° F	SAE J530, SAE J531	000000000	00000
3/4	1,000 psi @ 72° F	SAE J530, SAE J531	000000000	00000